If you do not get an easy answer, you can always try searching the PB database: http://about.usps.com/postal-bulletin/ ... my notes say searchable (one-by-one) from 2001/+ http://lcpshome.org/links/links-postal-bulletins.htm ... my notes say Lake County Philatelic Society ... US Postal Bulletins from 19950101 ... PDFs http://www.uspostalbulletins.com/ ... my notes say US Postal Bulletins 1880-1971 ... digitized & searchable online http://sossi.org/postmark/uscancels.htm ... DIY! ... USPS Special Event Pictorial Cancellations ... Designing and Obtaining http://about.usps.com/publications/pub186/ ... Celebrating with Pictorial Postmarks … Jan 2007 … USPS Publication 186 Good hunting! Cheers, /s/ ikeyPikey
As far as I can determine, the Postal Bulletin of July 22, 1993 was the first to list the available pictorial cancels available.
Thank you for posting your finding. With the recent elections running into overtime and beyond, its nice to get some cloture! Cheers, /s/ ikeyPikey
